*{margin: 0px;padding: 0px;}
html,body{overflow: hidden;background-color: rgb(24, 44, 63);background-size: 100% 100%;background-repeat: no-repeat;}
.content{background-repeat: no-repeat;background-size: 100%;transition: all 0.75s ease 0s;}
.box{position: absolute;}
.bg{
    position: fixed;
    top: 0px;
    bottom: 0px;
    left: 0px;
    right: 0px;
    background-color: #21333c;
    z-index: 9999999;
}
.spinner {
    margin: 0px auto;
    width: 50px;
    height: 60px;
    text-align: center;
    font-size: 10px;
    position: relative;
    top: 50%;
    transform: translateY(-50%);
  }
   
  .spinner > div {
    box-shadow: 0 0 8px 1px #03A9F4;
    background-color: #ffffff;
    height: 100%;
    width: 6px;
    display: inline-block;
     
    -webkit-animation: stretchdelay 1.2s infinite ease-in-out;
    animation: stretchdelay 1.2s infinite ease-in-out;
  }
   
  .spinner .rect2 {
    -webkit-animation-delay: -1.1s;
    animation-delay: -1.1s;
  }
   
  .spinner .rect3 {
    -webkit-animation-delay: -1.0s;
    animation-delay: -1.0s;
  }
   
  .spinner .rect4 {
    -webkit-animation-delay: -0.9s;
    animation-delay: -0.9s;
  }
   
  .spinner .rect5 {
    -webkit-animation-delay: -0.8s;
    animation-delay: -0.8s;
  }
   
  @-webkit-keyframes stretchdelay {
    0%, 40%, 100% { -webkit-transform: scaleY(0.4) } 
    20% { -webkit-transform: scaleY(1.0) }
  }
   
  @keyframes stretchdelay {
    0%, 40%, 100% {
      transform: scaleY(0.4);
      -webkit-transform: scaleY(0.4);
    }  20% {
      transform: scaleY(1.0);
      -webkit-transform: scaleY(1.0);
    }
  }